575487 ÷ 1 
The aim is to understand the frequency of 1 in 575487.

Advancing to step 1:
1 goes into 5 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 0 after subtracting 5 from 5.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 1

On to step 2:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 57.0
Subtract 7 from 7 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 1

Step 3:
If we divide 5 by 1, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 575.0
The remainder is 0 after subtracting 5 from 5.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

On to step 4:
When dividing 4 by 1, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 5754.0
Subtracting 4 from 4 leaves us with 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 1

Advancing to step 5:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 57548.0
The remainder is 0 after subtracting 8 from 8.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 1

On to step 6:
When dividing 7 by 1, we get 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 575487.0
Subtract 7 from 7 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 575487.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 575487.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 575487.0 with a remainder of 0.0.